This question resolves YES if Jensen Huang officially holds the title of CEO (permanent or interim both count; co-CEO counts) at any corporation that has a valuation of at least 1 trillion US dollars while he holds that title. Other titles do not count (e.g. executive chair, president, founder). Being CEO of a subsidiary does not count, even if the subsidiary is plausibly worth 1 trillion dollars (e.g. CEO of Amazon Web Services does not count, but CEO of Amazon does count). The corporation can be publicly traded (e.g. on lists like these) or privately traded (in which case I'll use reasonable public evidence about its valuation). Otherwise, the question resolves NO on 1 Jan 2030. I'll use my best judgement if there is ambiguity.

For example, if Jensen Huang becomes CEO of Nvidia again and Nvidia is worth a trillion dollars while he is CEO, this question would resolve YES. If Jensen Huang became CEO of another trillion dollar company, this question would also resolve YES. If Jensen Huang founds a new company at which he is CEO and that company becomes valued at a trillion dollars while he is CEO, this resolves YES.